Device for collecting and separating dust.



. I. H. SPENCER.

DEVICE FDD ooLLDcTlNG AND SDPARATING- DUST. APPLICATION FILED NOV. 22, 41907. L l 1 4,060, Patented 0013.20, 1914.

2 SHEETS--SHE-ET 1.

W/TNESSEL N .23 /ra H. Spencer'.

I. H. SPENCER.

DEVICE POR COLLECTING AND SEPARATING DUST.

APPLIGATLON PLBD Nov. 22. 1907.

1,1 14,060 Patented 001.2111914.

2 SHEETS-s111121 2.'

Fig- 2 w/TNESSES /NVE/vrof? M /fa H. Spencer'.

A TTOHNE Y UNTTED- sTATEs PATENT oEEioE.

IRA H. SPENCER, or HARTFORD, CONNECTICUT, AssrGNoR To THE SPENCER TUEBINE CLEANER COMPANY, or HARTFORD, CONNECTICUT, A CORPORATION or CONNECTI- CUT.

To all whom it may concern:

Be it known that I, IRA H.SPENCER, a citizen of the United States, and a resident of Hartford, in the county of Hartford and State of Connecticut, (whose post-oliice address is Hartford, Connecticut,) .have in` vented certain new and useful Improvements in Devices for Collecting and Separat ing Dust, of which the following is afull, clear, and exact description, whereby any one skilled i the art may make and use the same.

l The inver .ti'bn relates to an apparatus for separating l ,11st,'dirt or like material and air drawn -in through suitable connections and for depositing said dirt. l n

lIt relates more particularlyto asuction apparatusl having means for effectively separating all deleterious'materialfrom the iinpregnated/ fluid drawn therethrough.

The objects of the invention are toprolvide a simple' and extremely eicient apparats for effectively throwing of through centrifugal' action and collecting `all materials carried' in `thefluid which is under the influence of the .suction apparatus.

A still further object is to provide means- 'for controlling at different points in `the ap- 3.' paratus the separation of the material car- .0'

ried insuspension in thel fluid from said fluid as it is forced through the apparatus.

A still further object is to provide means for directing the movements of the fluid in a predetermined manner to secure great elii.

ciency of centrifugal action and positive separation, without disturbing dust and dirt already separated from the fluid.

Referring to the drawings: Figure 1 is a' side elevation of the device with parts of the casing broken away to better illustrate.

the construction. Fig. 2 is `a cross-sectional view on the line X-X ofFig. 1 indicating tion with devices for use in suction cleaning such apparatus has been selected for the 'pur pose of illustration and description -of my invention herein, in the accompanying drawings, in which the numeral 1 denotes atubu lar casing divided into aseries of impeller compartments 2 extendingfrom end to end ofthe casing 1. Thesefini'peller compart- Specicatoii' of LetterslPat'ent. l.

Applicationv filed November 22, 1907, Serial N o. 403,319.

Patented Oct. 20, 1914.

ments are formed by the insertion Within the Icasing 1 of disks 3 which conform as` to general contour to the impeller blades 41. The annular disks 3 have upon one face a series .of deflectors. 5 curving from the inner pieriphery of the casing 1 to the central open? ing' 6 of the compartment disks 3. rIhe iinpeller blades 4 extend froinimpeller disks 7 mounted in front of the curved deflectors 5 =and the plates 7 are secured' to hubs 8 mountlinipeller casing. -The shaft -9 is `driven through apulley 14 by belt 15 and driving pulley 16. `The latter is secured to the armature shaft of a inotor 17 suitably mounted upon the casing 1. Arranged Eupon the yheader 12 and surrounding the `bearing 10 is pivoted an arm 18 which is provided with an axle 19, upon which .rotate's an idler pulley 20.

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At the forward end of the casing 1 is ar- Y y ranged a partition 22 having a central inlet opening 23. This inlet 'opening 23 lies within a tubular shell or 'guide 2&1, which is secured thereto and extends toward the header 12. The first impeller'compartment 25 is arranged just in the rear of the partition 22,

and as the iiiletchamber 21 is arranged substantially tangentialto thetube 2,4 alll incomingA fluid must pass about said tube and through it before entering the first. impeller compartment 25. At the forward end ofthe tube 24 there are mounted blades 26 which are .secured to the main shaft 9 through a hub 27 and disk-like plate 28. Therey are several of these wings or blades 26 arranged,

at the outer end of ,the disk 28 in such Inanner .as to overlie the outer end and surface ofthe tube 24. In fact, the blades 26 revolve in anA annular compartment 29 formed between the tube 24 and the inner periphery of the inipeller casingl. Arranged at one side of the -annular `chamber 29 is a receiver casing 30 connected with the main casing 1 and provided with a cylindrical removable drawer` 31.A .This draw-er. v31,-acts as a receptacle to receive particles of materialthe arrows, first through the inlet opening,

then about the annular chamber 29 wherea I rapid whirling movement is given to it by the blades 26, then through the interior of the' tube 24 andlinlet opening 23 to the fan casing. It will be understood that the Huid, no matter how heavily impregnated, will be swirled about the annular chamber 29 and the heavier particles carried in said lluid will be deposlted inreceptacle 31.

The fluid after passing through the tube 24 and the fan casing is subjected to the action of the impeller 32 that is not backed uplby one of the disks 3 having curved bladesl 5,"but thatruns in an annular chamber 33.

. This chamber 33 is formed by a tubular ex- 3.5 ing material must pass as it is driven of by the impeller 32. Opposed to the outerend of' the annular chamber 37 formed by the tubes 34 and 36 is awall 38, having a central opening 39 of much less diameter than that. of the 4impeller or the lannular chambery 37.v When a positive retarding screen or collector isused, thiso'pening 39, connects with the interior of the casing for said positive collector, otherwise the exhaust is connected directly with the` chamber 40 formed intermediate the,wall 38 andlthe'header' 13 of As shown'in Fig. 1 there is an upwardlyi extending casing 42' preferably: mounted upon the casing l and connecting therewith. This'casing 42 is provided with a hand-hole 43 and an exhaust opening 44,'. the latter .The tubular millar -ch separated from the casing 42 andthe casing 1`.bya' cylindrical screen 45.` Thisscreen is i suspended at its upper end by suitable loops 46fand at -itslower end is held in place within ata .ered-neck 47 This .neck 47 extends upwardly and inwardly from a plate 48 which divides the casing 42 into a receiving compartment, 49 and an exhaust .compartment 50. The latter is of course freely connected with -the exhaust `opening .44, while the'gformer is connected with the interior of thefcasing- 1 through the compartment 40 and vopening 39. The lower end of thescreen 45- is'prov1ded with a ring-51y of smaller diameterthan the inner end .of the heck 47. Thus the tscreen isqprevented. from rising vhen subjected to the tension of the passing `projection `34 being of less e casing'rl; provides an anamber 52 which connects with a receiver53'arranged to be inserted in and remoyedjromhe receiver compartment 54.

dametenzthan t `This compartment 54, as in the case of the compartment 30, is transversely arranged with reference to the casing 1 and receives all particles ofmaterial which pass through the various impeller compartments and are inally thrown off by the centrifugal action of the moving fluid induced by the impeller 32. i

' f It has been found that the fluid moved by lthe impeller 32 is so rapidly whirled through the smooth annular passage 37 that all theappreciable impregnating material is thrownxoi into Vthe lannular chamber .52

.to the collector or receiver53. It will be diameter than either of the annular chambers`37 or 52, and thus the vortex of the slowly moving, though rapidly whirled, fluid is adjacent to the center of the shaft 9. With this arrangement practically pure fluid .is assed through the opening 39.

. lrcm the description heretofore given it `is apparent that the fluid, more or less completely impregnated, is first swirled through Vthe annular chamber 29, being brought into said chamber by the suction induced by the impellers and rapidly whirled about said chamber by theblades 26. Thus the rst action is to centrifugally separate all of the iheavier particles borne in the fluid.- From lthe very nature of the device, the air moves at a comparatively slow rate through the impeller casing 1, and particularly, when the positive screen 45, is employed, its movement is` much retarded as to exhaust speed when passing from the last impeller 32. lThis condition compels the rapid whirling .of the fluid adjacent to the exhaust side of Vthe apparatus by the impeller 32, and what little impregnatmg material is borne in the tfluid is then thrown oil' by direct'centrifugal action into the receiver 53.

VFrom ythe above it is apparent that the apparatus comprises .one or more distinct provisions for'inducing a direct whirling ,o1-centrifugal action `of fiuid for expelling material carried therein. i

vIn theoperation of the device the sepa- `rating action and collection of the separated ymaterial will be as effective, whether the apparatusis operated to a minimum'or maximum extent, with respect to the amount of the fluid passed therethrou h.

Obviously, the details o the mechanism might be varied to a considerable. extent without departing from the spirit orl intent of the invention, and the invention is not therefore limited to a device made in exact accordance with that herein shown and described.

to secure by .Letters Patent is:

where, continuing to swirl it `linds its wayV 1.. In an apparatus for collecting and sepi arating dust,.a case, a cylindrical tube cons 18.0`

What I claim as my invention and desire 80 noted that the opening 39 is of a much less closely fitting the end of the tube'and'the sides thereof but permitting the entrance of air thereinto, sai case having an opening throughits Wall located opposite the edge of l5 said cap whereby flow of air directly into the passage betweenthe cap and tube is insured, said. case vhavilig a second opening through its wall into a dust receptacle, thevdust receptacle, and means for rotating the cap.

f IRA H. SPENCER. Witnesses:

, ARTHUR P.- DAY, y WILBUR V. PAINE. 

